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@uitrit giant @anni @Hita JAMES B. WALLACE, OF FRANKLIN, OHIO, ASSIGNOR TO HIMSELF, R. WALLING, AND JOSEPH CROOK, OF SAME PLACE.

Letters Patent No. 61,126, dated January 8, 1867.

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TO ALL WI-IOM` ITv MAY CONCERN:

Be it known that I, JAMES B. WALLACE, of Franklin, in the county of Warren, and State of Ohio, have invented a new and improved Invalid Chair; and I do herebydeclare that the following is a full, clear, and exact description thereof, which will enable others skilled inthe art to make and use the same, reference being had to the accompanying drawings, forming a part of' this specification, in which- Figure l is a side view of an invalid chair of my inventionnextended for the patient to lie at full length.

Figure 2'is a side view of the same with the parts closed forv a sitting posture-of the patient.

Similar letters of reference indicate like parts. i

This invention relates to new and useful improvements in the construction of an extension chair for invalids, and consists in so forming the back of the chair that it shall exactly t the small of the back and the loins of a patient, when placed either in a recumbent o1' in a sitting posture, and thus giving thatdegree of support to the muscles of the lumbar region that is necessary to secure ease and comfort, by relieving them of all strain or exertion in sustaining the weight of the' body, which constitutes the fruitful source not only o t' muscular pain and uneasiness, but also one of the great obstacles in the way of complete restoration of an invalid to strength and health. The `devices I employ for extending and closing the chair withoutvdisturbing the invalid are also very simple and eifective; and the chair can be made very cheaply, as compared with the usually complicated and expensive mechanism for eiecting these objects. I

A A are' the legs connected with a centre standard, B, on which the bottom C of the chair is pivoted, so that it can turn around easily, while it is also supported on flat cg/ma reversa springs, a a a a, placed around the ,standard B in the ordinary manner. The back D is united to the bottom C by. single metal pin-joints, I) b, on

each side, and the lower limb or legs support E is unit-ed to the bottom Cby the plate H, which is pivoted at its ends to the respective parts. Thearms F F are connected to the lower limb E by pin-joints d d, and to the back D by buts or hinges c e; and attached to the lower end et" the limb E is a jointed, foot-board,f. By this arrangement ofjoints, connectingthe ba'ck and arms and lower limb of the chair tothe bottom, the moving parts are readily extended or closed for the patient to lie flat at full length,\or s it up straight, or rest in anyintcrmediate position, in which they are held as desired by racks gg, placed on the upper edges of the bottoni C, and pawls L z, on the under sides of the arms F F. The lowextpart of the cushion of the back D is stuffed in a convex form or gently swelling roll, G, which is so made as to tit exactly the concave form of the small of the back when the patient rests against it, thus a'ording perfect adaptation to the body, and supporting the muscles of the lumbar region in whatever position the chair may be placed, whether partially or wholly extended, for the invalid to recline or lie at full length, or closed, to sit up straight.

Having thus described my invention and its uses, what I claim as new, and desire to secure by Letters Patent, is Y n The leg support E, hinged to the arm-rests F, and pivoted to the bottom C, below vits juncture with the arm-rests, by the plate H, in the manner described and for the purpose specified.

2. VThe bottom C, in combination with the standard B, zg/ma reversed springs a a a a, and legs A, substantially as herein set forth and for the purpose specified.

. JAMES B. WALLACE.

Witnesses 'i' PHILIP WAGNER,

" Ge ELDRIDGE. 

